WO1997045520A1 - Aqueous bleach and disinfectant - Google Patents
Aqueous bleach and disinfectant Download PDFInfo
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- WO1997045520A1 WO1997045520A1 PCT/EP1997/002459 EP9702459W WO9745520A1 WO 1997045520 A1 WO1997045520 A1 WO 1997045520A1 EP 9702459 W EP9702459 W EP 9702459W WO 9745520 A1 WO9745520 A1 WO 9745520A1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/044—Hydroxides or bases
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D10/00—Compositions of detergents, not provided for by one single preceding group
- C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/395—Bleaching agents
- C11D3/3956—Liquid compositions
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/29—Sulfates of polyoxyalkylene ethers
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/75—Amino oxides
Definitions
- the invention relates to new aqueous bleaching and disinfecting agents containing alkali metal hypochlorites, alkyl ether sulfates, amine oxides, fatty acid salts and alkali metal hydroxides in selected proportions.
- EP-A 0 274 885 (1CI) recommends the use of mixtures of linear and branched amine oxides. According to the teaching of EP-A 0 145 084 (Unilever), mixtures of amine oxides with soaps, sarcosinates, taurides or sugar esters can also be used for this purpose.
- EP-A 0 137 551 and EP-A 0 447 261 (Unilever) the use of amine oxides with soap or sarcosinate and further anionic surfactants, for example alkyl sulfates, alkyl ether sulfates, secondary alkane sulfonates or alkyl benzene sulfonates as thickening agents Component known.
- alkylarylsulfonates as thickeners in aqueous bleaching agents which contain certain stilbene dyes as optical brighteners is reported in EP-A 0 156438.
- ES-A 8801389 (Henkel Iberica) relates to bleaching agents based on aqueous hypochlorite solutions which, as surfactant components, predominantly contain alkyl ether sulfates and also small amounts of amine oxides.
- EP-A1 0 447 261 also includes aqueous bleaching agent compositions with a content known to sodium hypochlorite and anionic surfactants. However, the hypochlorite concentration of these agents is 0.1 to 8 and preferably 0.5 to 5% by weight of active chlorine.
- German Patent DE-C1 43 33 100 the applicant has already proposed stable and sufficiently viscous aqueous bleaching and cleaning agents based on hypochlorites, fatty alcohol ether sulfates and amine oxides, which contain amine oxide phosphonic acids as a mandatory component. Even if the preparations are not objectionable from an application point of view, the use of phosphonic acids is not without problems with regard to the introduction of phosphorus compounds into surface waters. Since the amine oxide phosphonic acids are also comparatively expensive ingredients, there continues to be a need in the market for simple, viscous formulations which are characterized by high storage stability, chlorine resistance and good dispersing properties with a low hypochlorite content.
- the object of the invention was therefore to provide new aqueous bleaching and disinfecting agents which are free from the disadvantages described.
- the invention relates to aqueous bleaching and disinfecting agents free from amine oxide phosphonic acids, containing - based on the agents -
- Alkali metal hypochlorites are to be understood as lithium, potassium and in particular sodium hypochlorite.
- the hypochlorites can preferably be used in amounts of 1.5 to 2% by weight, based on the composition.
- Alkyl ether sulfates are known anionic surfactants which are obtained by sulfation of nonionic surfactants of the alkylpolyglycol ether type and subsequent neutralization.
- the alkyl ether sulfates which are suitable for the purposes of the agents according to the invention follow the formula (I)
- R 1 represents an alkyl radical having 12 to 18 carbon atoms
- n represents numbers 2 to 5
- X represents sodium or potassium.
- Typical examples are the sodium salts of sulfates of the Ci2 / i4-coconut alcohol-2, - 2,3- and -3-EO adduct.
- the alkyl ether sulfates can have a conventional or restricted homolog distribution.
- the alkyl ether sulfates are preferably used in amounts of 2 to 4% by weight, based on the composition.
- Amine oxides are also known substances, which are occasionally attributed to the cationic, but usually the nonionic surfactants.
- the nonionic surfactants For their preparation, one starts from tertiary fatty amines, which usually have either one long and two short or two long and one short alkyl radical, and is oxidized in the presence of hydrogen peroxide.
- the amine oxides which are suitable for the purposes of the invention follow the formula (II) R 3
- R 2 represents a linear or branched alkyl radical having 12 to 18 carbon atoms and R 3 and R 4 independently of one another R 2 or an optionally hydroxyl-substituted alkyl radical having 1 to 4 carbon atoms.
- Amine oxides of the formula (II) are preferably used, in which R 2 and R 3 are C12 / 14- and Ci ⁇ vi ⁇ -cocoalkyl radicals and R4 is a methyl or a hydroxyethyl radical.
- amine oxides of the formula (II) in which R 2 is a C12 / 14 or C12 / 18 cocoalkyl radical and R 3 and R 4 have the meaning of a methyl or hydroxyethyl radical.
- the amine oxides are preferably used in amounts of 1.5 to 3% by weight, based on the composition.
- the agents according to the invention may contain fatty acid salts of the formula (III) as further constituents,
- R 5 CO is an acyl radical having 12 to 22 carbon atoms and X is an alkali metal.
- Typical examples are the sodium and / or potassium salts of lauric acid, myristic acid, palmitic acid, palmoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, linoleic acid, linolenic acid, elaeostearic acid, arachidic acid, gadoleic acid, behenic acid and erucic acid technical blends, such as those that occur during the pressure splitting of technical fats and oils. Salts of technical coconut or tallow fatty acids are preferably used.
- the fatty acids which are neutralized in situ when they are introduced into the mixture can also be used instead of the salts.
- the fatty acid salts are preferably used in amounts of 1.5 to 2% by weight.
- Suitable alkali metal hydroxides are potassium hydroxide and, in particular, sodium hydroxide, which are preferably used in amounts of 1.5 to 2% by weight and serve to adjust the pH of the compositions to an optimal value of 12.5 to 14.
- the agents according to the invention have a viscosity above 100 mPas - measured at 20 ° C. in a Brookfield viscometer - are stable in storage, resistant to chlorine consumption and are distinguished by excellent dispersibility for dye pigments.
- Auxiliaries and additives which the preparations may further contain include, for example, other chlorine-stable surfactants or hydrotropes, such as alkyl sulfates, alkyl sulfonates, alkyl benzenesulfonates, xylene sulfonates, sarcosinates, taurides, isethionates, sulfosuccinates, betaines, sugar esters, Fatty alcohol polyglycol ethers and alkyl oligoglycosides.
- the sum of these additional surfactants preferably makes up at most 10% by weight of the total amount of surfactants in the formulation.
- alkyl sulfates in amounts of 0.5 to 3% by weight is particularly preferred.
- the agents can contain active chlorine-stable fragrances, optical brighteners, dyes and pigments in a total amount of 0.01 to 0.5% by weight, based on the agents.
- the fragrances known to be active chlorine-resistant include, for example, monocyclic and bicyclic monoterpene alcohols and their esters with acetic or prapionic acid (for example isoborneal, dihydroterpene oil, isobomylacetate, dihydroterpenylacetate).
- the optical brighteners can be, for example, the potassium salt of 4,4 , -bis- (1 l 2,3-triazolyl) - (2 -) - stilbin-2 l 2-sulfonic acid, which is sold under the Phorwite® BHC brand 766 is distributed.
- Possible color pigments include green chlorophthalocyanines (Pigmosol® Green, Hostaphine® Green) or yellow Solar Yellow® BG 300 (Sandoz).
- the agents according to the invention are produced by stirring. If necessary, the product obtained can be decanted or filtered to remove foreign bodies and / or agglomerates. Examples
- the viscosity was determined at 20 ° C. using a Brookfield viscometer (model RCT, spindle No. 1 or No. 2, 200 rpm). To determine the chlorine stability, the test mixtures were stored in a colorless plastic bottle under the influence of daylight and the active chlorine content was determined.
- the formulas R1 to R3 are according to the invention, the formulas R4 to R7 are used for comparison. The results are summarized in Table 1 (quantitative data as% by weight)
- preparations according to the invention are not only equivalent to those which contain amine oxidephosphonic acids as stabilizers with regard to viscosity, storage stability and chlorine consumption, but z. T. are even superior.
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Abstract
Novel aqueous bleaches and disinfectants are proposed which contain, in relation to the agents, (a) 1 to 3 wt % alkaline metal hypochlorites, (b) 1 to 5 wt % alkyl ether sulphates, (c) 1 to 4 wt % amine oxides, (d) 1 to 4 wt % fatty acid salts and (e) 0.1 to 2 wt % alkaline metal hydroxides, and possibly other customary auxiliaries and additives. Even without the addition of amine oxide phosphonic acids, the preparations have sufficiently high viscosity and a very long shelf life, the ability to disperse dye pigments and chlorine stability.
Description
Wäßrige Bleich- und Desinfektionsmittel Aqueous bleach and disinfectant
Gebiet der ErfindungField of the Invention
Die Erfindung betrifft neue wäßrige Bleich- und Desinfektionsmittel, enthaltend Alkalimetallhypochlorite, Alkylethersulfate, Aminoxide, Fettsäuresalze und Alkalimetallhydroxide in ausgewählten Mengenver¬ hältnissen.The invention relates to new aqueous bleaching and disinfecting agents containing alkali metal hypochlorites, alkyl ether sulfates, amine oxides, fatty acid salts and alkali metal hydroxides in selected proportions.
Stand der TechnikState of the art
In der Vergangenheit haben sich in den Bereichen Hygiene und Desinfektion solche Bleichmittel auf der Grundlage von Alkalimetallhypochloriten bewährt, die über eine bemerkenswerte Viskosität ver¬ fügen und sich daher sowohl für die Behandlung horizontaler als auch geneigter und vor allem verti¬ kaler Oberflächen eignen. Die Viskosität dieser Mittel bewirkt, daß die Kontaktzeit zwischen diesen und den zu behandelnden Oberflächen wesentlich größer ist als bei handelsüblichen Flüssigprodukten, die rasch von der Oberfläche abfließen.In the past, such bleaching agents based on alkali metal hypochlorites have proven themselves in the fields of hygiene and disinfection which have a remarkable viscosity and are therefore suitable for the treatment of horizontal as well as inclined and, above all, vertical surfaces. The viscosity of these agents has the effect that the contact time between them and the surfaces to be treated is considerably longer than in the case of commercially available liquid products which flow off rapidly from the surface.
In der Vergangenheit hat es nicht an Versuchen gemangelt, derartig viskose Bleich- und Desinfek¬ tionsmittel bereitzustellen. So wurde beispielsweise gefunden, daß bestimmte Tenside oder Tensid- gemische eine verdickende Wirkung auf wäßrige Hypochloritlösungen ausüben. In der EP-A 0 274 885 (1CI) wird beispielsweise der Einsatz von Mischungen linearer und verzweigter Aminoxide empfohlen. Gemäß der Lehre der EP-A 0 145 084 (Unilever) können für diesen Zweck auch Mischungen von Aminoxiden mit Seifen, Sarkosinaten, Tauriden oder Zuckerestern eingesetzt werden. Aus den Schrif¬ ten EP-A 0 137 551 und EP-A 0 447 261 (Unilever) ist der Einsatz von Aminoxiden mit Seife oder Sar- kosinat und weiteren anionischen Tensiden, beispielsweise Alkylsulfaten, Alkylethersulfaten, sekun¬ dären Alkansulfonaten oder Alkylbenzolsulfonaten als verdickende Komponente bekannt. Über die Ver-
wendung von Alkylarylsulfonaten als Verdickungsmitteln in wäßrigen Bleichmitteln, die bestimmte Stilbenfarbstoffe als optische Aufheller enthalten, wird in der EP-A 0 156438 berichtet. Gegenstand der ES-A 8801389 (Henkel Iberica) sind Bleichmittel auf Basis von wäßrigen Hypochloritlösungen, die als Tensidkomponente überwiegend Alkylethersulfate und daneben kleine Anteile an Aminoxiden enthal¬ ten. Aus der EP-A1 0 447 261 sind weiterhin wäßrige Bleichmittelzusammensetzungen mit einem Ge¬ halt an Natriumhypochlorit und anionischen Tensiden bekannt. Die Hypochloritkonzentration dieser Mit¬ tel liegt jedoch bei 0,1 bis 8 und vorzugsweise 0,5 bis 5 Gew.-% Aktivchlor.In the past there has been no shortage of attempts to provide such viscous bleaching and disinfecting agents. For example, it has been found that certain surfactants or surfactant mixtures have a thickening effect on aqueous hypochlorite solutions. For example, EP-A 0 274 885 (1CI) recommends the use of mixtures of linear and branched amine oxides. According to the teaching of EP-A 0 145 084 (Unilever), mixtures of amine oxides with soaps, sarcosinates, taurides or sugar esters can also be used for this purpose. From the documents EP-A 0 137 551 and EP-A 0 447 261 (Unilever) the use of amine oxides with soap or sarcosinate and further anionic surfactants, for example alkyl sulfates, alkyl ether sulfates, secondary alkane sulfonates or alkyl benzene sulfonates as thickening agents Component known. About the sales The use of alkylarylsulfonates as thickeners in aqueous bleaching agents which contain certain stilbene dyes as optical brighteners is reported in EP-A 0 156438. ES-A 8801389 (Henkel Iberica) relates to bleaching agents based on aqueous hypochlorite solutions which, as surfactant components, predominantly contain alkyl ether sulfates and also small amounts of amine oxides. EP-A1 0 447 261 also includes aqueous bleaching agent compositions with a content known to sodium hypochlorite and anionic surfactants. However, the hypochlorite concentration of these agents is 0.1 to 8 and preferably 0.5 to 5% by weight of active chlorine.
Im Deutschen Patent DE-C1 43 33 100 hat die Anmelderin bereits stabile und ausreichend viskose wäßrige Bleich- und Reinigungsmittel auf Basis von Hypochloriten, Fettalkoholethersulfaten und Amin¬ oxiden vorgeschlagen, die als zwingende Komponente Aminoxidphosphonsäuren enthalten. Auch wenn die Zubereitungen aus anwendungstechnischer Sicht nicht zu beanstanden sind, ist die Mitver¬ wendung von Phosphonsäuren im Hinblick auf den Eintrag von Phosphorverbindungen in Oberflä¬ chengewässer nicht ohne Probleme. Nachdem es sich bei den Aminoxidphosphonsäuren zudem um vergleichsweise kostspielige Inhaltsstoffe handelt, besteht im Markt auch weiterhin ein Bedürfnis nach möglichst einfachen, viskosen Formulierungen, die sich bei niedrigem Hypochloritgehalt durch eine hohe Lagerstabilität, Chlorbeständigkeit und gute Dispergiereigenschaften auszeichnen.In German Patent DE-C1 43 33 100, the applicant has already proposed stable and sufficiently viscous aqueous bleaching and cleaning agents based on hypochlorites, fatty alcohol ether sulfates and amine oxides, which contain amine oxide phosphonic acids as a mandatory component. Even if the preparations are not objectionable from an application point of view, the use of phosphonic acids is not without problems with regard to the introduction of phosphorus compounds into surface waters. Since the amine oxide phosphonic acids are also comparatively expensive ingredients, there continues to be a need in the market for simple, viscous formulations which are characterized by high storage stability, chlorine resistance and good dispersing properties with a low hypochlorite content.
Die Aufgabe der Erfindung hat somit darin bestanden, neue wäßrige Bleich- und Desinfektionsmittel zur Verfügung zu stellen, die frei von den geschilderten Nachteilen sind.The object of the invention was therefore to provide new aqueous bleaching and disinfecting agents which are free from the disadvantages described.
Beschreibung der ErfindungDescription of the invention
Gegenstand der Erfindung sind wäßrige Bleich- und Desinfektionsmittel, frei von Aminoxidphos¬ phonsäuren, enthaltend - bezogen auf die Mittel -The invention relates to aqueous bleaching and disinfecting agents free from amine oxide phosphonic acids, containing - based on the agents -
(a) 1 bis 3 Gew.-% Alkalimetallhypochlorite,(a) 1 to 3% by weight of alkali metal hypochlorites,
(b) 1 bis 5 Gew.-% Alkylethersulfate,(b) 1 to 5% by weight of alkyl ether sulfates,
(c) 1 bis 4 Gew.-% Aminoxide,(c) 1 to 4% by weight of amine oxides,
(d) 1 bis 4 Gew.-% Fettsäuresalze und(d) 1 to 4% by weight of fatty acid salts and
(e) 0,1 bis 2 Gew.-% Alkalimetallhydroxide(e) 0.1 to 2 wt% alkali metal hydroxides
sowie gegebenenfalls weitere übliche Hilfs- und Zusatzstoffe.
Überraschenderweise wurde gefunden, daß sich Bleich- und Desinfektionsmittel der angegebenen Zu¬ sammensetzung mit dem gewünschten Anforderungsprofil auch ohne Mitverwendung von Aminoxid¬ phosphonsäuren zur Verfügung stellen lassen, wenn man die genannten Inhaltsstoffe in den ange¬ gebenen Mengen abmischt.and, if appropriate, other customary auxiliaries and additives. Surprisingly, it has been found that bleaching agents and disinfectants of the stated composition with the desired profile of requirements can also be made available without the use of amine oxide phosphonic acids if the stated ingredients are mixed in the stated amounts.
AlkalimetallhypochloriteAlkali metal hypochlorites
Unter Alkalimetallhypochloriten sind Lithium-, Kalium- und insbesondere Natriumhypochlorit zu verste¬ hen. Die Hypochlorite können vorzugsweise in Mengen von 1 ,5 bis 2 Gew.-% - bezogen auf die Mittel - eingesetzt werden.Alkali metal hypochlorites are to be understood as lithium, potassium and in particular sodium hypochlorite. The hypochlorites can preferably be used in amounts of 1.5 to 2% by weight, based on the composition.
AlkylethersulfateAlkyl ether sulfates
Alkylethersulfate stellen bekannte anionische Tenside dar, die durch Sulfatierung von nichtionischen Tensiden vom Typ der Alkylpolyglycolether und nachfolgende Neutralisation erhalten werden. Die im Sinne der erfindungsgemäßen Mittel in Betracht kommenden Alkylethersulfate folgen der Formel (I),Alkyl ether sulfates are known anionic surfactants which are obtained by sulfation of nonionic surfactants of the alkylpolyglycol ether type and subsequent neutralization. The alkyl ether sulfates which are suitable for the purposes of the agents according to the invention follow the formula (I)
R10-(CH2CH2θ)„Sθ3X (I)R 1 0- (CH 2 CH2θ) „Sθ3X (I)
in der R1 für einen Alkylrest mit 12 bis 18 Kohlenstoffatomen, n für Zahlen 2 bis 5 und X für Natrium oder Kalium steht. Typische Beispiele sind die Natriumsalze von Sulfaten des Ci2/i4-Kokosalkohol-2, - 2,3- und -3-EO-Adduktes. Die Alkylethersulfate können eine konventionelle oder eingeengte Homolo¬ genverteilung aufweisen. Vorzugsweise werden die Alkylethersulfate in Mengen von 2 bis 4 Gew.-% - bezogen auf die Mittel - eingesetzt.in which R 1 represents an alkyl radical having 12 to 18 carbon atoms, n represents numbers 2 to 5 and X represents sodium or potassium. Typical examples are the sodium salts of sulfates of the Ci2 / i4-coconut alcohol-2, - 2,3- and -3-EO adduct. The alkyl ether sulfates can have a conventional or restricted homolog distribution. The alkyl ether sulfates are preferably used in amounts of 2 to 4% by weight, based on the composition.
AminoxideAmine oxides
Auch Aminoxide stellen bekannte Stoffe dar, die gelegentlich den kationischen, in der Regel jedoch den nichtionischen Tensiden zugerechnet werden. Zu ihrer Herstellung geht man von tertiären Fettaminen aus, die üblicherweise entweder einen langen und zwei kurze oder zwei lange und einen kurzen Alkyl¬ rest aufweisen, und oxidiert sie in Gegenwart von Wasserstoffperoxid. Die im Sinne der Erfindung in Betracht kommenden Aminoxide folgen der Formel (II),
R3 Amine oxides are also known substances, which are occasionally attributed to the cationic, but usually the nonionic surfactants. For their preparation, one starts from tertiary fatty amines, which usually have either one long and two short or two long and one short alkyl radical, and is oxidized in the presence of hydrogen peroxide. The amine oxides which are suitable for the purposes of the invention follow the formula (II) R 3
II.
R2-N->0 (II)R2-N-> 0 (II)
I R*I R *
in der R2 für einen linearen oder verzweigten Alkylrest mit 12 bis 18 Kohlenstoffatomen sowie R3 und R4 unabhängig voneinander für R2 oder einen gegebenenfalls hydroxysubstituierten Alkylrest mit 1 bis 4 Kohlenstoffatomen stehen. Vorzugsweise werden Aminoxide der Formel (II) eingesetzt, in der R2 und R3 für C12/14- bzw. Ci∑viβ-Kokosalkylreste stehen und R4 einen Methyl- oder einen Hydroxyethylrest be¬ deutet. Ebenfalls bevorzugt sind Aminoxide der Formel (II), in denen R2 für einen C12/14- bzw. C12/18- Kokosalkylrest steht und R3 und R4 die Bedeutung eines Methyl- oder Hydroxyethylrestes haben. Vor¬ zugsweise werden die Aminoxide in Mengen von 1 ,5 bis 3 Gew.-% - bezogen auf die Mittel - einge¬ setzt.in which R 2 represents a linear or branched alkyl radical having 12 to 18 carbon atoms and R 3 and R 4 independently of one another R 2 or an optionally hydroxyl-substituted alkyl radical having 1 to 4 carbon atoms. Amine oxides of the formula (II) are preferably used, in which R 2 and R 3 are C12 / 14- and Ci∑viβ-cocoalkyl radicals and R4 is a methyl or a hydroxyethyl radical. Also preferred are amine oxides of the formula (II) in which R 2 is a C12 / 14 or C12 / 18 cocoalkyl radical and R 3 and R 4 have the meaning of a methyl or hydroxyethyl radical. The amine oxides are preferably used in amounts of 1.5 to 3% by weight, based on the composition.
FettsäuresalzeFatty acid salts
Als weitere Bestandteile können die erfindungsgemäßen Mittel Fettsäuresalze der Formel (III) enthalten,The agents according to the invention may contain fatty acid salts of the formula (III) as further constituents,
R5CO-OX (III)R 5 CO-OX (III)
in der R5CO für einen Acylrest mit 12 bis 22 Kohlenstoffatomen und X für ein Alkalimetall steht. Typische Beispiele sind die Natrium- und/oder Kaliumsalze der Laurinsäure, Myristinsäure, Palmitin- säure, Palmoleinsäure, Stearinsäure, Isostearinsäure, Ölsäure, Elaidinsäure, Petroselinsäure, Linol- säure, Linolensäure, Elaeostearinsäure, Arachinsäure, Gadoleinsäure, Behensäure und Erucasäure so¬ wie deren technische Mischungen, wie sie bei der Druckspaltung technischer Fette und Öle anfallen. Vorzugsweise werden Salze technischer Kokos- oder Taigfettsäuren eingesetzt. Da die erfin¬ dungsgemäßen Rezepturen stark alkalisch eingestellt sind, können anstelle der Salze auch die Fett¬ säuren eingesetzt werden, die beim Eintragen in die Mischung in situ neutralisiert werden. Vorzugs¬ weise werden die Fettsäuresalze in Mengen von 1 ,5 bis 2 Gew.-% eingesetzt.
Alkalimetallhydroxidein which R 5 CO is an acyl radical having 12 to 22 carbon atoms and X is an alkali metal. Typical examples are the sodium and / or potassium salts of lauric acid, myristic acid, palmitic acid, palmoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, linoleic acid, linolenic acid, elaeostearic acid, arachidic acid, gadoleic acid, behenic acid and erucic acid technical blends, such as those that occur during the pressure splitting of technical fats and oils. Salts of technical coconut or tallow fatty acids are preferably used. Since the recipes according to the invention are strongly alkaline, the fatty acids which are neutralized in situ when they are introduced into the mixture can also be used instead of the salts. The fatty acid salts are preferably used in amounts of 1.5 to 2% by weight. Alkali metal hydroxides
Als Alkalimetallhydroxide kommen Kaliumhydroxid und insbesondere Natriumhydroxid in Betracht, welche vorzugsweise in Mengen von 1 ,5 bis 2 Gew.-% eingesetzt werden und dazu dienen, den pH- Wert der Mittel auf einen optimalen Wert von 12,5 bis 14 einzustellen.Suitable alkali metal hydroxides are potassium hydroxide and, in particular, sodium hydroxide, which are preferably used in amounts of 1.5 to 2% by weight and serve to adjust the pH of the compositions to an optimal value of 12.5 to 14.
Gewerbliche AnwendbarkeitIndustrial applicability
Die erfindungsgemäßen Mittel weisen eine Viskosität oberhalb von 100 mPas - gemessen bei 20°C in einem Brookfield-Viskosimeter - auf, sind lagerstabil, gegen Chlorzehrung beständig und zeichnen sich durch ein ausgezeichnetes Dispergiervermögen für Farbstoffpigmente aus.The agents according to the invention have a viscosity above 100 mPas - measured at 20 ° C. in a Brookfield viscometer - are stable in storage, resistant to chlorine consumption and are distinguished by excellent dispersibility for dye pigments.
Als Hilfs- und Zusatzstoffe, die die Zubereitungen weiterhin enthalten können, kommen beispielsweise weitere chlorstabile Tenside bzw. Hydrotrope in Betracht, wie etwa Alkylsulfate, Alkylsulfonate, Alkyl- benzolsulfonate, Xylolsulfonate, Sarkosinate, Tauride, Isethionate, Sulfosuccinate, Betaine, Zucker¬ ester, Fettalkoholpolyglycolether und Alkyloligoglykoside. Vorzugsweise macht die Summe dieser zu¬ sätzlichen Tenside höchstens 10 Gew.-% der Gesamtmenge an Tensiden in der Rezeptur aus. Die Mit¬ verwendung von Alkylsulfaten in Mengen von 0,5 bis 3 Gew.-% ist dabei besonders bevorzugt. Da- rüberhinaus können die Mittel aktivchlorstabile Duftstoffe, optische Aufheller, Farbstoffe und Pigmente in Mengen von insgesamt 0,01 bis 0,5 Gew.-% - bezogen auf die Mittel - enthalten. Zu den als aktiv- chlorbeständig bekannten Duftstoffen zählen beispielsweise monocyclische und bicyclische Monoter- penalkohole sowie deren Ester mit Essig- oder Prapionsäure (z.B. Isoborneal, Dihydroterpenöl, Isobomylacetat, Dihydroterpenylacetat). Bei den optischen Aufhellern kann es sich beispielsweise um das Kalisalz der 4,4,-bis-(1l2,3-Triazolyl)-(2-)-Stilbin-2l2-sulfonsäure handeln, das unter der Marke Phorwite® BHC 766 vertrieben wird. Als Farbpigmente kommen u.a. grüne Chlorophthalocyanine (Pigmosol® Green, Hostaphine® Green) oder gelbes Solar Yellow® BG 300 (Sandoz) in Frage. Die Herstellung der erfindungsgemäßen Mittel erfolgt mittels Umrühren. Gegebenenfalls kann das erhalte¬ ne Produkt zur Abtrennung von Fremdkörpern und/oder Agglomeraten dekantiert oder filtriert werden.
BeispieleAuxiliaries and additives which the preparations may further contain include, for example, other chlorine-stable surfactants or hydrotropes, such as alkyl sulfates, alkyl sulfonates, alkyl benzenesulfonates, xylene sulfonates, sarcosinates, taurides, isethionates, sulfosuccinates, betaines, sugar esters, Fatty alcohol polyglycol ethers and alkyl oligoglycosides. The sum of these additional surfactants preferably makes up at most 10% by weight of the total amount of surfactants in the formulation. The use of alkyl sulfates in amounts of 0.5 to 3% by weight is particularly preferred. In addition, the agents can contain active chlorine-stable fragrances, optical brighteners, dyes and pigments in a total amount of 0.01 to 0.5% by weight, based on the agents. The fragrances known to be active chlorine-resistant include, for example, monocyclic and bicyclic monoterpene alcohols and their esters with acetic or prapionic acid (for example isoborneal, dihydroterpene oil, isobomylacetate, dihydroterpenylacetate). The optical brighteners can be, for example, the potassium salt of 4,4 , -bis- (1 l 2,3-triazolyl) - (2 -) - stilbin-2 l 2-sulfonic acid, which is sold under the Phorwite® BHC brand 766 is distributed. Possible color pigments include green chlorophthalocyanines (Pigmosol® Green, Hostaphine® Green) or yellow Solar Yellow® BG 300 (Sandoz). The agents according to the invention are produced by stirring. If necessary, the product obtained can be decanted or filtered to remove foreign bodies and / or agglomerates. Examples
Die Viskosität wurde bei 20°C mit Hilfe eines Brookfield-Viskosimeters (Modell RCT, Spindel Nr.1 oder Nr.2, 200 Upm) bestimmt. Zur Bestimmung der Chlorstabilität wurden die Testmischungen unter dem Einfluß von Tageslicht in einer farblosen Kunststoffflasche gelagert und der Aktivchlorgehalt bestimmt. Die Rezepturen R1 bis R3 sind erfindungsgemäß, die Rezepturen R4 bis R7 dienen zum Vergleich. Die Ergebnisse sind in Tabelle 1 zusammengefaßt (Mengenangaben als Gew.-%)The viscosity was determined at 20 ° C. using a Brookfield viscometer (model RCT, spindle No. 1 or No. 2, 200 rpm). To determine the chlorine stability, the test mixtures were stored in a colorless plastic bottle under the influence of daylight and the active chlorine content was determined. The formulas R1 to R3 are according to the invention, the formulas R4 to R7 are used for comparison. The results are summarized in Table 1 (quantitative data as% by weight)
Tabelle 1 Viskosität, Lagerstabilität und ChlorzehrungTable 1 Viscosity, storage stability and chlorine consumption
*) Aminoxid auf Basis Aminotrimethylenphosphonsäure * ) Amine oxide based on aminotrimethylenephosphonic acid
Man erkennt, daß die erfindungsgemäßen Zubereitungen denen, die Aminoxidphosphonsäuren als Stabilisatoren enthalten, im Hinblick auf Viskosität, Lagerstabilität und Chlorzehrung nicht nur gleich¬ wertig, sondern z. T. sogar überlegen sind.
It can be seen that the preparations according to the invention are not only equivalent to those which contain amine oxidephosphonic acids as stabilizers with regard to viscosity, storage stability and chlorine consumption, but z. T. are even superior.
Claims
1. Wäßrige Bleich- und Desinfektionsmittel, frei von Aminoxidphosphonsäuren, enthaltend - bezogen auf die Mittel -1. Aqueous bleaching and disinfecting agents, free of amine oxide phosphonic acids, containing - based on the agents -
(a) 1 bis 3 Gew.-% Alkalimetallhypochlorite,(a) 1 to 3% by weight of alkali metal hypochlorites,
(b) 1 bis 5 Gew.-% Alkylethersulfate,(b) 1 to 5% by weight of alkyl ether sulfates,
(c) 1 bis 4 Gew.-% Aminoxide,(c) 1 to 4% by weight of amine oxides,
(d) 1 bis 4 Gew.-% Fettsäuresalze und(d) 1 to 4% by weight of fatty acid salts and
(e) 0,1 bis 2 Gew.-% Alkalimetallhydroxide(e) 0.1 to 2 wt% alkali metal hydroxides
sowie gegebenenfalls weitere übliche Hilfs- und Zusatzstoffe,and, if appropriate, other customary auxiliaries and additives,
2. Mittel nach Anspruch 1 , dadurch gekennzeichnet, daß sie Natriumhypochlorit enthalten.2. Composition according to claim 1, characterized in that they contain sodium hypochlorite.
3. Mittel nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß sie Alkylethersulfate der For¬ mel (I) enthalten,3. Composition according to claims 1 and 2, characterized in that they contain alkyl ether sulfates of the formula (I),
RiO-(CH2CH20)nSθ3X (I)RiO- (CH 2 CH 2 0) n Sθ3X (I)
in der R1 für einen Alkylrest mit 12 bis 18 Kohlenstoffatomen, n für Zahlen 2 bis 5 und X für Natrium oder Kalium steht.in which R 1 represents an alkyl radical having 12 to 18 carbon atoms, n represents numbers 2 to 5 and X represents sodium or potassium.
4. Mittel nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß sie Aminoxide der Formel (II) enthalten,4. Composition according to claims 1 to 3, characterized in that they contain amine oxides of the formula (II),
R3 R 3
I R2-N->0 (II)I R2-N-> 0 (II)
II.
R4 R 4
in der R2 für einen linearen oder verzweigten Alkylrest mit 12 bis 18 Kohlenstoffatomen sowie R3 und R4 unabhängig voneinander für R2 oder einen gegebenenfalls hydroxysubstituierten Alkylrest mit 1 bis 4 Kohlenstoffatomen stehen. in which R 2 represents a linear or branched alkyl radical having 12 to 18 carbon atoms and R 3 and R 4 independently of one another R 2 or an optionally hydroxyl-substituted alkyl radical having 1 to 4 carbon atoms.
5. Mittel nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß sie Fettsäuresalze der Formel (III) enthalten,5. Composition according to claims 1 to 4, characterized in that they contain fatty acid salts of the formula (III),
R5CO-OX (III)R 5 CO-OX (III)
in der R5CO für einen Acylrest mit 12 bis 22 Kohlenstoffatomen und X für ein Alkalimetall steht.in which R 5 CO is an acyl radical having 12 to 22 carbon atoms and X is an alkali metal.
6. Mittel nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, daß sie Natriumhydroxid enthalten.6. Composition according to claims 1 to 5, characterized in that they contain sodium hydroxide.
7. Mittel nach den Ansprüchen 1 bis 6, dadurch gekennzeichnet, daß sie eine Viskosität oberhalb von 100 mPas - gemessen bei 20°C in einem Brookfield-Viskosimeter - aufweisen. 7. Composition according to claims 1 to 6, characterized in that they have a viscosity above 100 mPas - measured at 20 ° C in a Brookfield viscometer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97924946A EP0912696B1 (en) | 1996-05-24 | 1997-05-14 | Aqueous bleach and disinfectant |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996121048 DE19621048C2 (en) | 1996-05-24 | 1996-05-24 | Aqueous bleach and disinfectant |
DE19621048.8 | 1996-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997045520A1 true WO1997045520A1 (en) | 1997-12-04 |
Family
ID=7795282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1997/002459 WO1997045520A1 (en) | 1996-05-24 | 1997-05-14 | Aqueous bleach and disinfectant |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0912696B1 (en) |
DE (1) | DE19621048C2 (en) |
ES (1) | ES2196334T3 (en) |
WO (1) | WO1997045520A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999058635A1 (en) * | 1998-05-08 | 1999-11-18 | Henkel Kommanditgesellschaft Auf Aktien | Bleaching and disinfecting agents |
DE19902904A1 (en) * | 1999-01-26 | 2000-08-03 | Henkel Kgaa | Bleach and disinfectant |
DE102005041436A1 (en) * | 2005-08-31 | 2007-03-01 | Henkel Kgaa | Aqueous bleaching composition, useful to bleach textiles, comprises hypohalogenated bleaching agent, surfactant mixture comprising ether sulfate, alkane sulfonate and amine oxide, foam regulator, and optional alkali silicate and stabilizers |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0137551A1 (en) * | 1983-09-23 | 1985-04-17 | Unilever N.V. | Liquid thickened bleaching composition |
EP0145084A2 (en) * | 1983-12-02 | 1985-06-19 | Unilever N.V. | Bleaching composition |
EP0635568A1 (en) * | 1993-07-23 | 1995-01-25 | The Procter & Gamble Company | Thickened hypochlorite detergent compositions with improved cleaning performance |
EP0636691A2 (en) * | 1993-07-30 | 1995-02-01 | National Starch And Chemical Limited | Bleach compositions |
WO1995003383A1 (en) * | 1993-07-23 | 1995-02-02 | The Procter & Gamble Company | Thickened aqueous detergent compositions with improved cleaning performance with short chain surfactants |
WO1995008610A1 (en) * | 1993-09-20 | 1995-03-30 | The Procter & Gamble Company | Use of hypochlorite-comprising compositions with a short chain surfactant for odour reduction |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4474677A (en) * | 1981-11-06 | 1984-10-02 | Lever Brothers Company | Colored aqueous alkalimetal hypochlorite compositions |
DE4333100C1 (en) * | 1993-09-29 | 1994-10-06 | Henkel Kgaa | Bleaching and disinfecting compositions |
-
1996
- 1996-05-24 DE DE1996121048 patent/DE19621048C2/en not_active Expired - Fee Related
-
1997
- 1997-05-14 EP EP97924946A patent/EP0912696B1/en not_active Expired - Lifetime
- 1997-05-14 WO PCT/EP1997/002459 patent/WO1997045520A1/en active IP Right Grant
- 1997-05-14 ES ES97924946T patent/ES2196334T3/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0137551A1 (en) * | 1983-09-23 | 1985-04-17 | Unilever N.V. | Liquid thickened bleaching composition |
EP0145084A2 (en) * | 1983-12-02 | 1985-06-19 | Unilever N.V. | Bleaching composition |
EP0635568A1 (en) * | 1993-07-23 | 1995-01-25 | The Procter & Gamble Company | Thickened hypochlorite detergent compositions with improved cleaning performance |
WO1995003383A1 (en) * | 1993-07-23 | 1995-02-02 | The Procter & Gamble Company | Thickened aqueous detergent compositions with improved cleaning performance with short chain surfactants |
EP0636691A2 (en) * | 1993-07-30 | 1995-02-01 | National Starch And Chemical Limited | Bleach compositions |
WO1995008610A1 (en) * | 1993-09-20 | 1995-03-30 | The Procter & Gamble Company | Use of hypochlorite-comprising compositions with a short chain surfactant for odour reduction |
Also Published As
Publication number | Publication date |
---|---|
EP0912696B1 (en) | 2003-04-09 |
ES2196334T3 (en) | 2003-12-16 |
DE19621048A1 (en) | 1997-11-27 |
EP0912696A1 (en) | 1999-05-06 |
DE19621048C2 (en) | 2000-06-21 |
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